LM5110-1/2/3M National Semiconductor Corporation, LM5110-1/2/3M Datasheet

LM5110-1/2/3M

Manufacturer Part Number

LM5110-1/2/3M

Description

Dual 5A Compound Gate Driver With Negative Output Voltage Capabilitythe LM5110 Dual Gate Driver Replaces Industry Standard Gate Drivers With Improved Peak Output Current And Efficiency. Each "compound" Output Driver Stage Includes MOS And Bipolar Tra

Manufacturer

National Semiconductor Corporation

Datasheet

1.LM5110-123M.pdf (13 pages)

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LM5110

Dual 5A Compound Gate Driver with Negative Output

Voltage Capability

General Description

The LM5110 Dual Gate Driver replaces industry standard

gate drivers with improved peak output current and effi-

ciency. Each “compound” output driver stage includes MOS

and bipolar transistors operating in parallel that together sink

more than 5A peak from capacitive loads. Combining the

unique characteristics of MOS and bipolar devices reduces

drive current variation with voltage and temperature. Sepa-

rate input and output ground pins provide Negative Drive

Capability allowing the user to drive MOSFET gates with

positive and negative VGS voltages. The gate driver control

inputs are referenced to a dedicated input ground (IN_REF).

The gate driver outputs swing from V

ability to hold MOSFET gates off with a negative VGS volt-

age reduces losses when driving low threshold voltage

MOSFETs often used as synchronous rectifiers. When driv-

ing with conventional positive only gate voltage, the IN_REF

and V

common ground. Under-voltage lockout protection and a

shutdown input pin are also provided. The drivers can be

operated in parallel with inputs and outputs connected to

double the drive current capability. This device is available in

the SOIC-8 and the thermally-enhanced LLP-10 packages.

Features

n Independently drives two N-Channel MOSFETs

n Compound CMOS and bipolar outputs reduce output

Ordering Information

LM5110-1/2/3 M

LM5110-1/2/3 MX

LM5110-1/2/3 SD

LM5110-1/2/3 SDX

current variation

which can be negative with respect to IN_REF. The

Order Number

pins are connected together and referenced to a

SOIC-8

LLP-10

Package Type

to the output ground

DS200792

M08A

SDC10A

NSC Package Drawing

n 5A sink/3A source current capability

n Two channels can be connected in parallel to double the

n Independent inputs (TTL compatible)

n Fast propagation times (25 ns typical)

n Fast rise and fall times (14 ns/12 ns rise/fall with 2 nF

n Dedicated input ground pin (IN_REF) for split supply or

n Outputs swing from V

n Available in dual non-inverting, dual inverting and

n Shutdown input provides low power mode

n Supply rail under-voltage lockout protection

n Pin-out compatible with industry standard gate drivers

Typical Applications

n Synchronous Rectifier Gate Drivers

n Switch-mode Power Supply Gate Driver

n Solenoid and Motor Drivers

n Power Level Shifter

Package

n SOIC-8

n LLP-10 (4 mm x 4 mm)

drive current

load)

single supply operation

relative to input ground

combination configurations

Shipped in anti-static units

2500 shipped in Tape & Reel

1000 shipped in Tape & Reel

4500 shipped in Tape & Reel

to V

which can be negative

Supplied As

October 2003

www.national.com

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